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61382457070 = 2511811688067
BaseRepresentation
bin111001001010101011…
…011111011011101110
312212102211220220022221
4321022223133123232
52001202402111240
644110531025554
74302054163534
oct711253373356
9185384826287
1061382457070
1124039884570
12ba90a3b2ba
135a32ca5a1c
142d8431a154
1518e3ccea4a
hexe4aadf6ee

61382457070 has 32 divisors (see below), whose sum is σ = 120681622656. Its totient is φ = 22293338400.

The previous prime is 61382457049. The next prime is 61382457089. The reversal of 61382457070 is 7075428316.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254824 + ... + 433243.

It is an arithmetic number, because the mean of its divisors is an integer number (3771300708).

Almost surely, 261382457070 is an apocalyptic number.

61382457070 is a deficient number, since it is larger than the sum of its proper divisors (59299165586).

61382457070 is a wasteful number, since it uses less digits than its factorization.

61382457070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688896.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 61382457070 in words is "sixty-one billion, three hundred eighty-two million, four hundred fifty-seven thousand, seventy".

Divisors: 1 2 5 10 11 22 55 110 811 1622 4055 8110 8921 17842 44605 89210 688067 1376134 3440335 6880670 7568737 15137474 37843685 75687370 558022337 1116044674 2790111685 5580223370 6138245707 12276491414 30691228535 61382457070